Value Of CT In Diagnosis Research Articles

Clinical Value of Multi-slice Spiral CT in Diagnosis of Multiple Foot Fractures

Clinical Value of Multi-slice Spiral CT in Diagnosis of Multiple Foot Fractures

Clinical Value of Multi-slice Spiral CT in Diagnosis of Preoperative and Postoperative Recurrent Colon Cancer

Clinical Value of Multi-slice Spiral CT in Diagnosis of Preoperative and Postoperative Recurrent Colon Cancer

Clinical Value of CT in Diagnosis of Abdominal Infection in Patients with Gastrointestinal Perforation

Clinical Value of CT in Diagnosis of Abdominal Infection in Patients with Gastrointestinal Perforation

Role of CT Enterography in the Diagnosis of Crohn's Disease

Background: Crohn's disease is a multifactorial chronic inflammatory disease characterized by non-caseating granuloma formation with a tendency toward remission and relapse, it affects any part of the GIT from mouth to anus with 80% small bowel involvement, most commonly the terminal ileum, with characteristic multiple discontinuous sites involvement (skip lesions) and transmural inflammation. Aim of the Work: The purpose of this study is to highlight the value of CT in diagnosis of (CD) and its ability to assess the degree of activity and its complications. Patients and Methods: This prospective study was conducted on 87 patients with GIT symptoms where CTE was performed to evaluate its possible impact on accurate diagnosis, detection of complications and consequent guidance for management planning. It was performed in radiological department of Ain –Shams University hospital: CT Unit in the period from “July 2017 to April 2018. The patients’ age ranged between (24 – 72 years) with a mean of 48 years. Results: Of the 87 patients with GIT symptoms that were highly suggestive of inflammatory bowel disease evaluated, 32 were UC, 21 were CD, 9 were other types of IBD and 25 were normal. Of the 21 CD patients evaluated, 7 were male and 14 were female. Conclusion: The role of MDCT in the diagnosis of Crohn’s disease and its complications is undeniable, with a proven efficacy in identifying the enteric and extra-enteric manifestations of the disease. However, advancements in CT E protocol design have allowed increasing accuracy in diagnosis, and the acquisition of studies at a much lower radiation dose. Recommendations: Further studies on a larger scale of patients are needed to confirm the results obtained by this study.

Value of 64-row helical CT in diagnosis of duodenal papillary diseases

Value of 64-row helical CT in diagnosis of duodenal papillary diseases

Clinical value of CT in diagnosis of pulmonary Wegener's graulomatosis

Objective To explore the clinical value of CT in diagnosis of pulmonary Wegener's granulomatosis.Methods The clinical data of 11 cases with Wegener's granulomatosis of the lungs were selected.All patients underwent CT scan or enhanced MRI scans and misdiagnosis of CT images were analyzed.Results This group of patients with bilateral lung injury in 9 cases,unilateral lung injury in 2 cases.Main imaging features include:multiple nodules in 8 cases,irregular flakes consolidation shadow in 4 cases,wedge-shaped lesion in 3 cases,empty in 6 cases.Among 11 patients,8 patients were misdiagnosed,misdiagnosis rate was 72.72％ (8/11),of which 2 cases were misdiagnosed as primary lung cancer,3 cases were misdiagnosed as metastatic lung cancer,3 cases were misdiagnosed as tuberculosis.Conclusion The CT manifestations had a very important role in guiding the diagnosis of pulmonary Wegener's granulomatosis. Key words: Wegener granulomatosis; Lung; Tomography; X-ray computed; Diagnosis; differential

Application Value of CT in diagnosis of Ovarian Cystadenoma and Cystadenocarcinoma

Objective To expiore the value of CT in diagnosis of ovarian cystadenoma and cystadenocarcinoma. Methods CT findings of 35 patients with ovarian cystadenoma and cystadenocarcinoma confirmed by surgery and pathology were reviewed retrospectively. Resuls Among the 35 cases, 17cases were serous cystadenoma, 10 cases were mucous cystadenoma, 6 cases were serous cystadenocarcinoma, 2 cases mucous cystadenocarcinoma.The CT findings of cystadenoma were thin and smooth wall with uniocular or multicular, lacks of the mural nodule. The cystadenocarcinoma findings were thick and irregular wall and septa, most of them had nodules no the wall or had solid parts.Conlusion Ovarian cystadenoma and cystadenocarcinoma have characteristic CT findings. CT is useful in diagnosis of ovarian cystadenoma and cystadenocarcinoma. Key words: Ovary neoplasms; Cystadenoma; Cystadenocarcinoma; Tomography, X-ray computed

CT diagnosis of acute appendicitis

Objective To investigate the value of CT in diagnosis of acuteppendicitis. Methods Acute appendicitis was confirmed by pathology in 30 cases after the operation. CT features of 30 acute appendicitis were analyzed and compared with the surgery and pathological results retrospectively. Results Among of 30 acute appendicitis,20 cases were simple appendicitis,6 cases were acute suppurative appendicitis and 4 cases were appendiceal abscess. 20 cases simple appendicitis showed the appendix enlarged in diameter,with wall thickening in CT imaging. 6 cases acute suppurative appendicitis showed the appendix enlarged in diameter,with wall thickening and periappendiceal inflammation in CT imaging. 4 cases appendiceal abscess showed inflammatory tumors with asymmetrical attenuation in ileocecal region and complicating fluid collection in right iliac fossa and cavity of pelvis in CT imaging. In 4 cases appendiceal abscess,2 cases complicated small intestine obstruction. 7 cases appendiceal fecalith were found in 30 acute appendicitis. Conclusion CT scanning can illustrate feature of acute appendicitis and make correct diagnosis,and can provide important information for clinician. Key words: Appendicitis; Computed tomography,X-ray

Aspects scannographiques des prothèses valvulaires mécaniques aortiques et de leurs complications

Currently, multidetector row CT (MDCT) is routinely used for cardiac imaging, especially for detection of coronary artery disease and morphological and functional evaluation. Recent advances in MDCT with cardiac gating and improved spatial and temporal resolution allow non-invasive evaluation of cardiac valves with significant reduction in artifacts traditionally associated with valvular prostheses. Postsurgical follow-up of mechanical aortic valvular prostheses requires knowledge of the functioning mechanism of different valve types and related complications, some potentially lethal and sometimes of insidious onset. The most frequently used non-invasive imaging modalities to evaluate morphology and function of prosthetic heart valves are echocardiography and fluoroscopy. We present the CT imaging features of three mechanical aortic valvular prostheses and the value of CT for diagnosis of related complications as a complement to standard imaging modalities.

Intérêt de la tomodensitométrie dans la sinusite fongique allergique (SFA)

To assess the value of CT for diagnosis and follow-up of AFS. Evaluation of characteristic CT features of AFS. Retrospective review of 12 cases of AFS presenting with all published diagnostic criteria (1) chronic rhinosinusitis refractory to standard management (2) CT features of chronic sinusitis (3) anatomopathologic, immunoallergologic, biochemical and mycologic criteria. CT findings were correlated with surgical findings and reviewed by one ENT and two radiologists to assess the diagnostic value of different CT features, alone or in association. AFS was isolated in 6 cases, and associated with allergic bronchopulmonary aspergillosis (ABPA) in 6 cases. CT showed pan- or polysinusitis, unilateral or bilateral, with mucosal thickening, sinus opacification frequently heterogeneous, bony changes, fluid trapping, and with pseudotumoral appearance in 3 cases. CT findings alone are not specific or pathognomonic but may suggest AFS in the correct clinical or immunoallergologic setting. It may alert the physician to the need for complementary work-up, exclude the presence of associated lung disease, and better adapt treatment and follow-up.

Acute mediastinitis: spectrum of computed tomography findings

The objective of this study was to describe CT findings and to determine the diagnostic value of CT in diagnosis of acute mediastinitis. CT findings were retrospectively studied in 40 patients with suspected acute mediastinitis, including 28 postoperative patients, five with acute descending necrotizing mediastinitis (ADNM), and seven with suspected post-traumatic perforation of the esophagus. Findings included increased attenuation of mediastinal fat (100%), localized mediastinal fluid collections (55%), free gas bubbles in the mediastinum (57.5%), mediastinal lymph nodes (35%), pericardial effusions (27.5%), pleural effusions (85%), lung infiltrates (35%), sternal dehiscence (40%), and pleuromediastinal fistula (2.5%). The sensitivity and specificity of CT in postoperative patients in the first 17 days was 100% and 33% respectively, and after day 17, 100% and 90%. In patients with ADNM sensitivity was 100% while in patients with suspected esophageal perforation sensitivity and specificity were 100%. CT is a highly sensitive technique for the detection of mediastinitis of various causes. For the postoperative patients there is clear time dependence for CT interpretation and accuracy. In patients with suspected ADNM, and traumatic esophageal perforation CT is highly specific early after clinical presentation.

The value of CT in diagnosis and prognosis of different inborn neurodegenerative disorders in childhood.

Inborn errors of metabolism in 40 children have been investigated by computed tomography to obtain data on the degree of cerebral involvement in neurodegenerative and storage disorders: 20 children had various mucopolysaccharidoses, 8 sphingolipidoses , 3 mucolipidoses, 2 oligosaccharidoses , 3 ceroidlipofuscinoses and 4 had various leucodystrophies . Diagnosis in all patients except Alexander's disease was established by biochemical or histological means. The main findings on CT were cerebral atrophy with enlargement of the ventricles and the subarachnoid spaces and hypodensity of the white matter. The degree of cerebral atrophy seemed to develop according to the age of the patients, as could be seen from the patients with mucopolysaccharidosis III, metachromatic leucodystrophy and GM1-gangliosidosis. Hypodensity of the white matter was found in mucopolysaccharidosis I-H, II-B, VI, in mucolipidosis II and in patients with leucodystrophies . On the other hand, there was great variability in these CT findings even in siblings, as seen in four patients with mucopolysaccharidosis VI. Among the series there were several patients who did not show any abnormalities in CT, so that a negative CT did not exclude these disorders, even the leucodystrophies . CT features such as cerebral atrophy or hypodensity were helpful in the evaluation of these disorders, though a diagnosis could not be made by CT alone.